Lavatory ventilator



June 1939- L. N HARBEKE LAVATQRY VENTILATOR Filed April 8, 1938 INVENTORLJVI Harbelce BY QQQJAAZ.

ATTORNEY Patented June 13, 1939 UNITED STATES PATENT OFFICE 3 Claims.

This invention relates generally to a toilet structure and in particularis directed to an improved ventilating arrangement for toilets.

The principal object of my invention is. to provide a ventilatingarrangement for use in combination with a toilet assembly wherein thetoilet bowl and water tank are unitary; the ventilating arrangementbeing so designed that it is entirely out of sight and yet efiicient andcontinuous in operation.

Another object of my invention is to provide a toilet ventilator whichembodies means to produce a substantial suction in the bowl and withoutthe use of driven mechanical apparatus such as a fan or the like.

A further object of the invention is to produce a simple and inexpensivedevice and yet one which will be exceedingly effective for the purposefor which it is designed.

These objects I accomplish by means of such structure and relativearrangement of parts as will fully appear by a perusal of the followingspecification and claims.

In the drawing similar characters of reference indicate correspondingparts in the several views:

Figure 1 is a side elevation of a toilet as installed and including theinvention.

Figure 2 is an enlarged, fragmentary section on line 2-2 of Fig. 1.

Figure 3 is a fragmentary front view of the lower end of the wallconduit.

Referring now more particularly to the characters of reference on thedrawing, the numeral l indicates a modern type toilet bowl arranged inunitary combination with a water tank 2 in the usual manner. As iscommon practice, the bowl is provided with a hinged seat 3 and a hingedcover 4.

A continuous. sealing gasket 5 is secured to the seat for engagementwith the rim of the bowl, while another continuous sealing gasket 6 isfixed on the cover for engagement with the seat. These gaskets arepreferably of resilient material such as rubber or the like. A watersupply passage 1 extends from tank 2 into the bowl at the rear andcommunicates with the usual water distributing channel 8 within the bowlat the rim.

The toilet combination, which is cast as an integral unit, includes aventilator passage 9 leading from a port 10 which opens into the bowl atthe back and through the rim above the water intake; said passage 9extending into water tank 2 and upward at the front thereof to a pointadjacent the top of the tank. The passage 9 then turns rearward andextends through the back B of the tank and through wall W into theinterior thereof between adjacent studs S.

This passage 9 gradually increases in cross. sectional area from port Into the passage end within the wall. Said end of the passage within the 5wall is connected to the lower end of a wall conduit H which is of muchgreater cross sectional area than any portion of passage 9 and is aboutas big as the stud spacing and their width will permit. Conduit Hprojects upward in the wall 10 and through the roof, the outer endhaving a protective hood l2 thereon.

In operation my improved ventilating arrangement is quite efficient andas the upward flow of air is carried in passage members increasing incross sectional area from port [0, a positive natural draft or suctionis created which removes all objectional odors from the bowl I. Also,when the seat and cover are lowered, gaskets 5 and 6 further preventescape of odors into the room.

From the foregoing description it will be readily seen that I haveproduced such a device as substantially fulfills the objects of theinvention as set forth herein.

While this specification sets forth in detail the present and preferredconstruction of the divice, still in practice such deviations from suchdetail may be resorted to as do not form a departure from the spirit ofthe invention, as defined by the appended claims.

Having thus described my invention, what I claim as new and useful anddesire to secure by Letters Patent is:

l. A toilet Ventilator including with a unitary toilet bowl and flushtank, there being an integral neck connecting the bowl and tank and inwhich the water flushing conduit is formed, continuous air passage meansformed integral with the bowl, neck and tank and extending from the bowlabove the conduit through the neck with an upward slope, then up thefront of the tank on the inside to adjacent the top and then across thetank to a termination beyond the back side thereof for connection to aflue leading to exterior atmosphere.

2. In a toilet apparatus which includes a toilet bowl, a flush tankabove and behind the same and a centrally disposed flushing conduitleading from the bottom of the tank to the bowl at the back thereof; aventilating device to withdraw gases from the bowl including meansforming an unbroken central venting passage leading from the bowldirectly above the flushing conduit to the interior of the tank adjacentthe bottom, then up inside the tank at the front to adjacent but belowthe top thereof and then across the tank to an open termination behindthe same a suificient distance therefrom to project through the innerface of an adjacent wall for connection to a suction flue.

3. A toilet ventilator including with a toilet bowl, air passage meansleading upwardly and rearw'ardly from the back of the bowl to aninitially open termination a predetermined distance behind the bowl, andan upstanding flue leading to exterior atmosphere connected to said opentermination of the passage means and forming a continuation thereof; thecross-sectional area of the flue throughout its extent beingconsiderably greater than that'of the passage means.

LOUIS N. HARBEKE.

